The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-324-8860, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is The American Society of Mechanical Engineers. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-324-8860 |
| Primary Part Number | 0.750-10UNC-3A2.250 LG |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | The American Society of Mechanical Engineers |
| Status | ACTIVE |
| Thread Length | 2.050 INCHES NOMINAL IN |
| Thread Quantity Per Inch | 10 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Material Document and Classification | QQ-N-281 FED SPEC ALL MATERIAL RESPONSES OVERALL |
| Thread Class | 3A A |
| Head Style | FLAT COUNTERSUNK |
| Internal Drive Style | HEXAGON |
| Width Across Flats | 0.625 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Fastener Length | 2.250 INCHES NOMINAL IN |
| Countersink Angle | 82.0 DEGREES NOMINAL |
| Head Diameter | 1.251 INCHES MINIMUM AND 1.375 INCHES MAXIMUM IN |
| Material | NICKEL ALLOY R-405 OR NICKEL ALLOY 400 OVERALL |
| Nominal Thread Diameter | 0.750 INCHES IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| FF-S-86 TYPE IV | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| 0.750-10UNC-3A2.250 LG PRIMARY | The American Society of Mechanical Engineers (USA) |
| 845-4558721 ITEM 10 | Naval Ship Systems Command (USA) |
NSN 5305-01-324-8860 is a Screw,cap,socket Head, manufactured by The American Society of Mechanical Engineers, classified under FSC 5305 (No Item Name Available). Status: active.
NSN 5305-01-324-8860 has 3 cross-referenced part numbers: FF-S-86 TYPE IV (Federal Specifications Promulgated by General Services Administration Washington DC), 0.750-10UNC-3A2.250 LG (The American Society of Mechanical Engineers), 845-4558721 ITEM 10 (Naval Ship Systems Command).
There are 7 known substitutes for 5305-01-324-8860: 5305-00-849-2853, 5305-00-900-1829, 5305-01-145-5306 and 4 more. Verify interchangeability with system specifications before substitution.
Key specifications for 0.750-10UNC-3A2.250 LG: Thread Length: 2.050 INCHES NOMINAL IN; Thread Quantity Per Inch: 10; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Material Document and Classification: QQ-N-281 FED SPEC ALL MATERIAL RESPONSES OVERALL. 14 total characteristics are documented in the Federal Logistics Information System.